Transcript Case Studies Task Force IEEE C57-104 Workgroup Meeting Milwaukee, WI LIGHTNING STRIKE Roger’s Ratio and IEC 60599 Methods Post Lightning Routine Hydrogen ( H2 ) R1 CH4/H2 IEC.

Case Studies Task Force
IEEE C57-104 Workgroup Meeting
Milwaukee, WI
LIGHTNING STRIKE
Roger’s Ratio and IEC 60599 Methods
Post
Lightning
Routine
Hydrogen ( H2 )
2604
15
R1 CH4/H2 IEC Term 2
0.2
Post-Lightning
Oxygen ( O2 )
7491
4642
R2 C2H6 / CH4
Nitrogen ( N2 )
86419
H
2)
60903
2,604
R3 C2H4/C2H67,491
IEC
Term 3
0.18
13.90%
DGA Results (PPM)
DGA Results
(PPM)
DGA Results
Hydrogen
(
Oxygen
( O2 )
(PPM)
516
Methane
(CH9 4)
Nitrogen
( N2 )
Methane (CH4)
Carbon Monoxide
(CO)
790
182
Ethylene (C2H4)
Carbon Monoxide (CO)
Carbon Dioxide (CO2)
Ethylene (C2H4)
7304
Ethane
( C2H662)
1147
Carbon Dioxide (CO2)
Ethane ( C2H6)
3540
93
5
Acetylene (C2H2)
2061
0
Total Combustible
Gas
7211
273
Acetylene (C2H2)
Duval Triangle Method (Table 5)
Post
PostLightning
Lightning
% CH4
R4
%C2H4
C2H2/C2H4 IEC
Term 1
%C286,419
H2516
Roger’s Ratio Table 2
Code
IEC Ratio
Table 3
1,147
790
Post-Failure
Routine
Routine
15
4,642
12.33
30.80%
1.8
9
60,903
55.30%
0,0,2,1 Arcing
D2 discharge
D2 High energy
62
182
Other Important Ratios
O2/( O2+ N2)
50.08
CO2/CO
9.25
93
7,304
2,061
3,540
0
SAGGING GROUND STRAP
DGA Results (PPM)
Post Move
Pre-move
149
0
Roger’s Post
RatioMove
and IEC 60599
Methods`
DGA
Results
(PPM)
Pre-move
DGA70Results45(PPM) Post Move Pre-move
Hydrogen ( H2 )
Post-Failure
R1 CH4/H2 IEC Term
2 Triangle Method
1.99
Duval
Oxygen ( O2 )
6,031
2,865
Oxygen
( O2 )( H2 )
6,031
2,865
Hydrogen
70
45 0.54
2
6
4
R2
C
H
/
CH
Nitrogen ( N2 )
91608
83,652
Post-Failure
R3 C2H4/C2H6 IEC Term 3
1.99
Nitrogen
) 456)
91608
83,652
% CH4
Methane (CH4)
139( N2(CH
Methane
5631.10%
R4 C2H2/C2H4 IEC139
Term 1
0.94
%C2H
35.60%
Roger’s Ratio Table
24
(1,0,1,1)
Close Fix to
Carbon Monoxide (CO)
129
132
Ethylene
(C2H4)(CO)
159
6733.30%
Arcing
Carbon Monoxide
129 H
132
%C
2 2
Loose Fit to D2
Carbon Dioxide (CO2)
3,791
3,747 IEC Ratio Table 3
Code
D2
Other
Important Ratios
Ethane
(
C
H
)
80
71
2
6
Ethylene (C2H4)
67
Carbon159
DioxideO(CO
3,791
3,747
2)2+ N2)
2/( O
0.06
Ethane ( C2H6)
80
71 )
Acetylene
(C2HCO
149
2 2/CO
29 0
Acetylene (C2H2)
Total Combustible
Gas
726
370
Total Combustible Gas
726
370
TURN TO TURN WINDING FAULT
DGA Results (PPM)
Post-Failure
Pre-Failure
DGA
Results
(PPM)Post-Failure
Pre-Failure
DGA Results
(PPM)
Post-Failure
Pre-Failure
Duval
Roger's
Triangle
RatiosMethod
Method
Hydrogen ( H )
122
0
2
Hydrogen
H2 )
Oxygen ( O2 () 4247
Oxygen ( O2 )
122
4,247
4372
Post-Failure
0
4,372
Post-Failure
R188540
CH4/H2 IEC Term 2
0
6 / CH4
C02H
% CH
Methane
(CH
1 0.00% 0
Methane (CH
0 4)
1R2
4)
4
Nitrogen ( N2 )
87,952
88,540
2
4
2
6
R3 C H /C H IEC Term 3
8
%C
H
19.40%
Carbon Monoxide
(CO)
355
17
2 4
Ethylene (C2H4) R4 C H /C
24
10
H
IEC
Term
1
4.2
2 2 2 4
Carbon Monoxide Roger’s
%C
80.60%
Diagnostic
Table
5,0,2,2 close fit
2H2
355
17
Carbon Dioxide
(CO
)
6330
6684
2
Ethane
(
C
H
)
3
9
2 6
(CO)
Code 2
D1to Arcing
Ethylene (C2H4)
24
10
IEC
Ratios
Table 3 0
D1
Acetylene
(C
H
)
100
2 2
Ethane ( C2H6)
3
9
Other Important Ratios
Dioxide
6,684
Acetylene (CCarbon
100 (CO2)
0 6,330
2H2)
Total
Combustible
2
2
O 604
/N
0.1
37
Total Combustible
604
37
GasGas
CO2/CO
6.4
Nitrogen ( N2 )
87952
DETC TAP CHANGER FAULT
11/22/200 7/31/2002 1/14/2002 11/21/2001 5/14/2001
11/22/2002
Sample Date
PPM/Day
7/31/02
1/14/02
7/31/2002
1/14/2002
11/21/2001
SampleRatios
Date 11/22/02
11/22/022 7/31/02
1/14/02
11/21/0111/21/01
5/14/01
Duval
Method
Table 4 119
and 5) 2
4/H2 IEC
R1 CH
2 Triangle
Hydrogen
(H2)Term
924
294 ( See152
4.6
5.7
4.5
6.9
H2 Methane
5.6
0.7
0.6
0.6
690
825
60
4) 4
R2 C2H6(CH
/ CH
Hydrogen
(H
9244,264 7/31/2002
2941,660 152
119 11/21/2001
2
2)
Ratios
11/22/2002
1/14/2002
0.4
0.4
0.5
0.3
CH H4/C2HMonoxide
23.3305
4.9
-2.684
4.1
(CO)3
174
100
32
6 IEC Term
R3 C42Carbon
Methane
4,264 2.5 1,660
60
2.6825
2.7
% CH4 (CH4)49.20%
52.20%2.6 69043.20%
53.00%
C2HCarbon
25.61,951
4
Dioxide (CO )
2
3.1
793
679
3.3651
Ethylene
R4
C2H2/C2H4 IEC Term 1
0
0
0
4,392
1,520
908
732
%C
H
50.70%
47.80%
56.80%
(C2H4) Table
4,392
1,520
908
732
C
10.6
1.2
1.5
26) 4Diagnostic
Roger’s
(C22H
HEthylene
4
2 2/0/1/0
2/0/1/0 345 2/0/1/0
Ethane (C2H6)
1,771
588
268
C
0.0
%C
2H22H2 (C2H6) 0.00%
Ethane
1,771
IEC Ratios
3
Acetylene
(C2H2Table
)
3T2
Acetylene
Gas
66.3
3 11,659
OComb.
/(
O
N
)
0.09
Diagnostic
Combustible
Gas
2
2+
2
(C2H2)
Code
CO2 / CO
6.4
(Table 5)
T3
3.6
274
0
66
47.00%
661.3
2/0/1/0
34
0.0 3450.00%
0.0268
0.00%
588
0.0
0.00%
34
10.4
0 4,236
0
0.09 02,195 3.2
0.08
2,028
0
1930.04
0
T2
T2
4.6
T2 0
0
T3
6.8
0
T2
9.8
7.8
T2
UNINTENTIONAL CORE GROUND
FAULT
Sample
Date
7/9/2001
5/30/2001
Roger’s
andTriangle
IEC Ratio
Methods
(Table
1, 25)3/31/2000
& 3)
Duval
Method
(Table
4 and
Sample
Dates
7/9/2001
Hydrogen
(HDate
840 05/30/01
538
2)
Sample
07/09/01
R1 CH4/H2 IEC Term 2
0
4,819
1,945
R2 C2H6 / CH4
0
Nitrogen
(N24)
90,232 0.0%
78,961
%
CH
0.0%
R3 C2H4/C2H6 IEC Term 3
5.6
Methane
(CH
0
0
4)
H
99.9%
100.0%
0
R4 C%C
H
/C
H
IEC
Term
1
2
4
2 2 2 4
Carbon Monoxide
(CO)
3,395 5,0,2,0
2,694
Ratio
%CRoger’s
H
0.1%
0.0%
2 2
Carbon DioxideIEC
(CO2)
700
No fit423
Diagnostic Code T3 Region, Thermal
Ethylene (C2H4) Other Important
5,673 Ratios
5,415
(Table
5)
Fault,
T
>700
°C
O2/( O2+ N2)
0.05
Ethane (C2H6)
1,021
976
CO2/CO
0.2
Oxygen (O2)
Acetylene (C2H2)
Total Combustible Gas
5
0
10,933
9,624
5/30/2001
0
03/31/00
0
23,566
0
88,681
100.0%
5.6
0.0%
01
213
5,0,2,0
0.0%
No 656
fit
0
0.020
0.16
0
214
HIGH VOLTAGE PHASE TO GROUND
Sample DateRoger’s and IEC
2/16/2004
2/13/2004
Ratio Methods
Hydrogen (Duval
H2) Triangle Method
90 (Table 2) 13
Ratios
Oxygen (O2) Ratios
34,784
25,811
2/16/04
R1 CH4/H2 IEC Term 2
0.5
Nitrogen (N2)
114,213
101,010
2
6
4
% CH4 R2 C H / CH
9.3%0.1
Methane (CH4)
48
5
2H4/C2H6 IEC Term 3
R3
C
22.6
21.9%
2H4
Carbon%C
Monoxide
(CO)
158
113
R4 C2H2/C2H4 IEC Term 1
3.1
68.7%
Carbon%C
Dioxide
(COCase
2)
2H2
Diagnostic
2 (Table653 (0,0,2,2) 524
Ethylene
113 Arcing 3
2)( C2H4) Code
Diagnostic
Ethane(Table
(C
5 D2 D1
2
2HRatio
6)5) (Table 3)
IEC
Acetylene (C2H2Other
)
0
Important354
Ratios
Combustible Gas
768 0.23 136
O2/( O2+N2)
CO2/CO
4.13
Thank You